2. Li cut a 6-inch piece of string into pieces that
are each of an inch long. How many pieces of
string did she cut?
A. 1
B. 6
C. 12
3.

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?